Canonical SSO provider

Merge proposals dependent on lp://staging/~canonical-isd-hackers/canonical-identity-provider/bugs-632536-680256-long-query-improvements

  1. bugs-632536-680256-long-query-improvements
  2. Dependent merge proposals

lp://staging/~canonical-isd-hackers/canonical-identity-provider/bugs-632536-680256-long-query-improvements has no merge proposals.